import java.io.*;
import java.net.*;
public class TCPClient {
  public static void main(String argv[]) throws Exception {
    String sentence;
    String modifiedSentence;
    BufferedReader inFromUser = new BufferedReader(new InputStreamReader(System.in));
    Socket clientSocket = new Socket("127.0.0.1", 6789);
    DataOutputStream outToServer = new DataOutputStream(clientSocket.getOutputStream());
    BufferedReader inFromServer =
        new BufferedReader(new InputStreamReader(clientSocket.getInputStream()));

    sentence = inFromUser.readLine();
    outToServer.writeBytes(sentence);

    modifiedSentence = inFromServer.readLine();
    System.out.print(modifiedSentence);
    clientSocket.close();
  }
}
